“This represents the reshaping of heavy metal production and the genre going to a new level of sophistication. As metal grew, more complexities were heard from bands that became more and more accomplished and polished.
“Mercyful Fate had great song structures and enormous riffing. Surprisingly, their guitar duo [Hank Sherman, Michael Denner] was most underrated, but they probably became influential anyway.
“Of course, there’s King Diamond, one of the most unorthodox vocalists ever. He’s like an instrumental unto himself. The way he crafted his multiple harmonies, driving home that antediluvian style of Satanism, pouring out the fire and brimstone shit that you’re taught in Catholic school – it hit on all cylinders."